We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Somatic Embryogenesis in Conifers: One Clade to Rule Them All?
- Authors
Fraga, Hugo Pacheco de Freitas; Moraes, Paula Eduarda Cardoso; Vieira, Leila do Nascimento; Guerra, Miguel Pedro
- Abstract
Somatic embryogenesis (SE) in conifers is usually characterized as a multi-step process starting with the development of proembryogenic cell masses and followed by histodifferentiation, somatic embryo development, maturation, desiccation, and plant regeneration. Our current understanding of conifers' SE is mainly derived from studies using Pinaceae species as a model. However, the evolutionary relationships between conifers are not clear. Some hypotheses consider conifers as a paraphyletic group and Gnetales as a closely related clade. In this review, we used an integrated approach in order to cover the advances in knowledge on SE in conifers and Gnetales, discussing the state-of-the-art and shedding light on similarities and current bottlenecks. With this approach, we expect to be able to better understand the integration of these clades within current studies on SE. Finally, the points discussed raise an intriguing question: are non-Pinaceae conifers less prone to expressing embryogenic competence and generating somatic embryos as compared to Pinaceae species? The development of fundamental studies focused on this morphogenetic route in the coming years could be the key to finding a higher number of points in common between these species, allowing the success of the SE of one species to positively affect the success of another.
- Subjects
SOMATIC embryogenesis; CONIFERS; REGENERATION (Botany); PINACEAE
- Publication
Plants (2223-7747), 2023, Vol 12, Issue 14, p2648
- ISSN
2223-7747
- Publication type
Article
- DOI
10.3390/plants12142648